{
  "start": "-PT3H",
  "widgets": [
    {
      "type": "metric",
      "x": 0,
      "y": 0,
      "width": 6,
      "height": 6,
      "properties": {
        "title": "5xx error rate",
        "view": "singleValue",
        "region": "us-east-1",
        "period": 300,
        "sparkline": true,
        "metrics": [
          [ { "expression": "100 * FILL(m2, 0) / m1", "label": "Errors (%)", "id": "e1" } ],
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        ]
      }
    },
    {
      "type": "metric",
      "x": 6,
      "y": 0,
      "width": 6,
      "height": 6,
      "properties": {
        "title": "Latency p99",
        "view": "gauge",
        "region": "us-east-1",
        "stat": "p99",
        "period": 300,
        "yAxis": { "left": { "min": 0, "max": 2 } },
        "metrics": [
          [ "AWS/ApplicationELB", "TargetResponseTime", "LoadBalancer", "app/checkout-api/50dc6c495c0c9188", { "label": "p99 (s)" } ]
        ]
      }
    },
    {
      "type": "metric",
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      "y": 0,
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      "height": 6,
      "properties": {
        "title": "Requests and errors",
        "view": "timeSeries",
        "region": "us-east-1",
        "stat": "Sum",
        "period": 300,
        "metrics": [
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}